Treyson sits next to 4 phonetic neighbors — Treyton, Grayson, and Brayson are the closest matches by sound. Most share Treyson's Old French trey + English son-origin cluster, so the rhythm and vowel shape carry across the list.
You searched for names like
"son of the third, third-born's son"
"red-haired, rust-colored"
"doorkeeper, one who ushers"
"wise one, seer"
"Ruler of the army"
"from the estate of the fighter"
"new house, bright (via Xavier heritage)"
"little red-haired one"
"of Marion, son of Marion"
"generous, tolerant"
"belonging to God"
"sharp hill, ridge"
"joy, music (original Old English meaning)"
"son of Roderick"
"promised land, holy city"
"English place name surname"
"sky father, father of gods"
"powerful ruler of the household"
"son of a nobleman (variant interpretation)"
"helper of God"
Similar sound: These names share phonetic patterns with Treyson — similar vowel sounds, consonant clusters, or rhythm.
Shared roots: Several names on this list have Old French trey + English son origins, giving them the same cultural heritage as Treyson.
Rhythm: Treyson is a 2-syllable name. Names with the same syllable count tend to feel interchangeable when you're narrowing your list.